FIELD: transport.
SUBSTANCE: invention relates to ship building. Unmanned submarine (US) is intended for patrolling local underwater areas and primary inspection of detected objects. US comprises two propulsors, one representing variable-pitch cruising propeller with axis located along submarine waterline. Second propulsor actuates only at speed drop to very low magnitude and complete stoppage and represents variable-pitch propeller with axis located perpendicular to submarine waterline. At cruising speed, the latter does not work and represents x-like system of horizontal controlled rudders.
EFFECT: higher maneuverability at low speeds, reduced noise.
7 dwg
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